当サイトはユーザー体験を改善するためのメンテナンスを実施中に機能が制限される予定です。記事を読んでもあなたの問題が解決せず質問をしたい場合は、Twitter の @FirefoxSupport、Reddit の /r/firefox で、サポートコミュニティが皆さんを助けようと待機しています。

Mozilla サポートの検索

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

詳しく学ぶ

このスレッドはアーカイブに保管されました。 必要であれば新たに質問してください。

firefox opens old tabs from a week ago each time I start up browser

  • 2 件の返信
  • 2 人がこの問題に困っています
  • 1 回表示
  • 最後の返信者: FredMcD

more options

when I start Firefox it opens old tabs for web pages I had open from a week ago. I does this on each PC I have synced for my Firefox browser. I did a Firefox refresh on each machine yet I still get old tabs each time I restart Firefox. I restarted each PC as well.

when I start Firefox it opens old tabs for web pages I had open from a week ago. I does this on each PC I have synced for my Firefox browser. I did a Firefox refresh on each machine yet I still get old tabs each time I restart Firefox. I restarted each PC as well.

選ばれた解決策

If you have sync, and there is a problem anywhere, Shut Down Sync Immediately to prevent the problem from spreading. once the problem is fixed, perform the same repair on all computers before using sync again.


You may have corrupt sessionstore file(s).

Type about:support in the address bar and press enter.

Under the page logo on the left side you will see Application Basics. Under this find Profile Folder. To it’s right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Locate the sessionstore file(s). Then rename or delete them. Restart Firefox.

この回答をすべて読む 👍 1

すべての返信 (2)

more options

You can check for problems with the sessionstore.js file in the profile folder that stores session data. When sessionstore.js is deleted you lose pinned tabs and Tab Groups and open tabs and you will have to recreate them, so if necessary make a note or bookmark them.

You can use this button to go to the current Firefox profile folder:

You can check the startup setting.

  • Tools > Options > General > Startup: "When Firefox starts":
    "Show my windows and tabs from last time"
    "Show my home page"
    "Show a blank page"
more options

選ばれた解決策

If you have sync, and there is a problem anywhere, Shut Down Sync Immediately to prevent the problem from spreading. once the problem is fixed, perform the same repair on all computers before using sync again.


You may have corrupt sessionstore file(s).

Type about:support in the address bar and press enter.

Under the page logo on the left side you will see Application Basics. Under this find Profile Folder. To it’s right press the button Show Folder. This will open your file browser to the current Firefox profile. Now Close Firefox.

Locate the sessionstore file(s). Then rename or delete them. Restart Firefox.